Answer:
The correct answer option is c. that you stop at the store.
Step-by-step explanation:
A clause or group of words which do not form a complete sentence by making sense on their own is said to be dependent clause.
A dependent clause contains a subject and a verb but still does not expresses a complete thought.
Here in the given example, 'that you stop at the store' is the dependent clause because it does not convey a complete idea or thought.